@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://www.irandoc.acir/onto/irandoc/CAB0002865>
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0005054>, <http://www.irandoc.acir/onto/irandoc/CAB0005079> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/CAB0002867> ;
  skos:prefLabel "لایه زهکشی"@fa, "drain layers"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/CAB0005079>
  skos:prefLabel "نصب زهکش"@fa, "drain laying"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0002865> .

<http://www.irandoc.acir/onto/irandoc/CAB0005054>
  skos:prefLabel "زهکشی زیرسطحی"@fa, "subsurface drainage"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/CAB0002865> .

<http://www.irandoc.acir/onto/irandoc/CAB0002867>
  skos:prefLabel "تجهیزات زهکشی"@fa, "drainage equipment"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/CAB0002865> .